FR3047806B1 - Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique - Google Patents

Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique Download PDF

Info

Publication number
FR3047806B1
FR3047806B1 FR1651213A FR1651213A FR3047806B1 FR 3047806 B1 FR3047806 B1 FR 3047806B1 FR 1651213 A FR1651213 A FR 1651213A FR 1651213 A FR1651213 A FR 1651213A FR 3047806 B1 FR3047806 B1 FR 3047806B1
Authority
FR
France
Prior art keywords
voltage
current
whose
resistor
converter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
FR1651213A
Other languages
English (en)
French (fr)
Other versions
FR3047806A1 (fr
Inventor
Christian Heil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L Acoustics SAS
Original Assignee
L Acoustics SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR1651213A priority Critical patent/FR3047806B1/fr
Application filed by L Acoustics SAS filed Critical L Acoustics SAS
Priority to RU2017104737A priority patent/RU2727074C2/ru
Priority to CA2957919A priority patent/CA2957919A1/en
Priority to EP17156116.0A priority patent/EP3206038B1/fr
Priority to ES17156116T priority patent/ES2876357T3/es
Priority to JP2017024970A priority patent/JP6872383B2/ja
Priority to CN201710082013.1A priority patent/CN107105379B/zh
Priority to US15/433,867 priority patent/US9949028B2/en
Publication of FR3047806A1 publication Critical patent/FR3047806A1/fr
Application granted granted Critical
Publication of FR3047806B1 publication Critical patent/FR3047806B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/007—Protection circuits for transducers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/462—Indexing scheme relating to amplifiers the current being sensed

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Measurement Of Current Or Voltage (AREA)
FR1651213A 2016-02-15 2016-02-15 Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique Expired - Fee Related FR3047806B1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR1651213A FR3047806B1 (fr) 2016-02-15 2016-02-15 Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique
CA2957919A CA2957919A1 (en) 2016-02-15 2017-02-14 Device for measuring an electric current generated by an acoustic amplifier in order to actuate an acoustic speaker
EP17156116.0A EP3206038B1 (fr) 2016-02-15 2017-02-14 Dispositif de mesure d'un courant électrique généré par un amplificateur acoustique pour actionner une enceinte acoustique
ES17156116T ES2876357T3 (es) 2016-02-15 2017-02-14 Dispositivo para medir una corriente eléctrica generada por un amplificador acústico para accionar un altavoz acústico
RU2017104737A RU2727074C2 (ru) 2016-02-15 2017-02-14 Устройство для измерения электрического тока, генерируемого усилителем звуковой частоты, для приведения в действие акустической колонки
JP2017024970A JP6872383B2 (ja) 2016-02-15 2017-02-14 音響スピーカーを作動させるために音響増幅器によって生成される電流を測定するための装置
CN201710082013.1A CN107105379B (zh) 2016-02-15 2017-02-15 测量由声学放大器产生的致动声学扬声器的电流的设备
US15/433,867 US9949028B2 (en) 2016-02-15 2017-02-15 Device for measuring an electric current generated by an acoustic amplifier in order to actuate an acoustic speaker

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1651213 2016-02-15
FR1651213A FR3047806B1 (fr) 2016-02-15 2016-02-15 Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique

Publications (2)

Publication Number Publication Date
FR3047806A1 FR3047806A1 (fr) 2017-08-18
FR3047806B1 true FR3047806B1 (fr) 2019-07-26

Family

ID=55486979

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1651213A Expired - Fee Related FR3047806B1 (fr) 2016-02-15 2016-02-15 Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique

Country Status (8)

Country Link
US (1) US9949028B2 (ru)
EP (1) EP3206038B1 (ru)
JP (1) JP6872383B2 (ru)
CN (1) CN107105379B (ru)
CA (1) CA2957919A1 (ru)
ES (1) ES2876357T3 (ru)
FR (1) FR3047806B1 (ru)
RU (1) RU2727074C2 (ru)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110932698A (zh) * 2019-12-17 2020-03-27 中晟微电子(南京)有限公司 一种高通滤波器的漏电流补偿电路

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4221128A (en) * 1978-09-29 1980-09-09 Neil Brown Instruments Systems, Inc. Acoustic current meter
JP2862370B2 (ja) * 1990-11-29 1999-03-03 株式会社アドバンテスト 電流検出回路
US5517134A (en) * 1994-09-16 1996-05-14 Texas Instruments Incorporated Offset comparator with common mode voltage stability
JP3189605B2 (ja) * 1994-12-20 2001-07-16 ソニー株式会社 スピーカー駆動回路
JP2004053528A (ja) * 2002-07-23 2004-02-19 Mitsubishi Electric Corp 電流検出回路
RU2231797C1 (ru) * 2002-11-25 2004-06-27 Институт проблем управления им. В.А. Трапезникова РАН Измерительный преобразователь переменного напряжения в постоянное
JP2005117361A (ja) * 2003-10-08 2005-04-28 Sanyo Electric Co Ltd 音響装置及び音響装置の音響特性設定方法
US7960997B2 (en) * 2007-08-08 2011-06-14 Advanced Analogic Technologies, Inc. Cascode current sensor for discrete power semiconductor devices
RU2442177C1 (ru) * 2010-09-09 2012-02-10 Министерство Промышленности И Торговли Российской Федерации Интегратор тока
EP2453669A1 (en) * 2010-11-16 2012-05-16 Nxp B.V. Control of a loudspeaker output
EP2632174B1 (en) * 2012-02-27 2016-10-26 ST-Ericsson SA A circuit for use with a loudspeaker for portable equipments
CN102854365B (zh) * 2012-09-03 2015-04-08 中国科学院电工研究所 一种磁声电电流测量装置
US8902005B2 (en) * 2012-09-25 2014-12-02 Analog Devices, Inc. Apparatus and method for wide common mode difference
TW201415913A (zh) * 2012-10-08 2014-04-16 Chi Mei Comm Systems Inc 揚聲器系統及其檢測方法
US9253569B2 (en) * 2013-12-20 2016-02-02 Infineon Technologies Ag System and method for a cancelation circuit
US9983233B2 (en) * 2014-02-06 2018-05-29 Texas Instruments Incorporated Current sensor
CN103954823B (zh) * 2014-05-14 2016-08-10 中国科学院声学研究所 声表面波电流传感器

Also Published As

Publication number Publication date
EP3206038B1 (fr) 2021-04-07
EP3206038A1 (fr) 2017-08-16
CN107105379A (zh) 2017-08-29
CN107105379B (zh) 2020-11-24
FR3047806A1 (fr) 2017-08-18
US20170238093A1 (en) 2017-08-17
RU2727074C2 (ru) 2020-07-17
RU2017104737A3 (ru) 2020-05-26
ES2876357T3 (es) 2021-11-12
RU2017104737A (ru) 2018-08-14
US9949028B2 (en) 2018-04-17
JP6872383B2 (ja) 2021-05-19
CA2957919A1 (en) 2017-08-15
JP2017146306A (ja) 2017-08-24

Similar Documents

Publication Publication Date Title
FR2532806A1 (fr) Dispositif servant a convertir un signal electrique en un signal acoustique
FR2562353A1 (fr) Dispositif electro-acoustique
FR3047806B1 (fr) Dispositif de mesure d'un courant electrique genere par un amplificateur acoustique pour actionner une enceinte acoustique
EP0649079A1 (fr) Circuit générateur de tension stabilisée du type bandgap
BE441589A (ru)
EP2514219B1 (fr) Appareil comprenant des moyens de connexion à un ou des haut parleurs externes ainsi que des moyens de détection d'une telle connexion
FR2504753A1 (fr) Circuit detecteur de niveau
FR2470483A1 (fr) Amplificateur a commande de courant de croisement et son procede d'utilisation
FR2873872A1 (fr) Amplificateur audio classe ad
FR2533779A1 (fr) Amplificateur audiofrequence de puissance avec regulation automatique du courant de polarisation absorbe par l'etage final
EP0612461B1 (fr) Procede et dispositif d'egalisation dynamique
CH695431A5 (fr) Amplificateur de puissance.
FR3096197A1 (fr) Methode de determination des performances audio d'un amplificateur
FR3048315B1 (fr) Convertisseur courant-tension, etage d'entree d'un amplificateur et amplificateur correspondant.
FR2882204A1 (fr) Circuit amplificateur large bande et circuit de polarisation
FR2699285A1 (fr) Dispositif de détection de puissance sur la sortie d'un circuit électronique.
WO2020049057A1 (fr) Etage de sortie classe a notamment pour casque audio
FR2996704A1 (fr) Etape amplificateur a reglage de volume integre
FR2960719A1 (fr) Un amplificateur audio de puissance dont la linearite et la stabilite thermique sont ameliorees
BE422275A (ru)
EP2139266A1 (fr) Nouveau transducteur de graves à moteur d'excitation pour haut-parleurs d'enceintes acoustiques permettant un ajustement du couplage entre le haut-parleur et le local d'écoute
FR2918226A1 (fr) Dispositif d'amplification, circuit electronique et enceinte acoustique correspondants.
CA2957731A1 (fr) Etage d'entree d'un amplificateur et amplificateur correspondant
BE463822A (ru)
FR2884077A1 (fr) Amplificateur a double asservissement et enceinte associee

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20170818

PLFP Fee payment

Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 5

PLFP Fee payment

Year of fee payment: 6

ST Notification of lapse

Effective date: 20221005